Across
- 7. attractive and acts down toward the center of the planet.
- 11. In a closed system the total momentum of the system is ________.
- 12. Something we don't know
- 13. A runner starts from rest and accelerates uniformly to a speed of 8 m/s in 4 s. What is the magnitude of the acceleration of the runner? ___m/s^2
- 14. Mass, density, volume, length, and area are examples of _____.
- 15. F=kx
- 16. 1/frequency
- 17. the force of gravity which acts upon an object known as the ____ of the object.
- 18. Someone who rides a motorcycle to school
- 19. d/t
Down
- 1. In which part of the electromagnetic spectrum does a photon have the greatest energy?
- 2. p=mv
- 3. Compared to 8 kg of feathers, 6 kg of lead has less mass and ____ inertia.
- 4. Remains the same at all locations
- 5. 1/2mv^2
- 6. Motion under the influence of gravity only (no air resistance)
- 8. As a wave travels through a medium, the particles of the medium vibrate in the direction of the wave's travel. What type of wave is traveling through the medium?
- 9. Conductivity in metallic solids is due to the presence of free what?
- 10. 1kg = 9.8 ___
- 12. velocity/time